Manufacturer: Avalon Instruments
Product number: AVLINSTGOWF-B

EUR 5.479,00


incl. 19 % VAT (DE)  
The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.
excl. 11.95 € shipping costs (DE)  
Please log in to calculate shipping costs to your country.
more details to the shipping costs ...

  • On stock
  • Only 1 pcs left in stock





There are no reviews for this product
  • Details..
  • Technical data..
  • In the box..
Avalon Linear Equatorial GoTo Mount - Star-GO Goto, Fast Reverse Technology
The Linear Fast Reverse is an innovative mount designed for astronomical imaging

It is manufactured in Italy by the DAL SASSO Srl, a company with more than 30 years of experience in the field of high precision mechanics. Marketed with the AVALON INSTRUMENTS trademark, this mount ranks in the medium-size mount range with a weight capacity around 20-25 kg (44 – 55 lb), imaging and observing, respectively.

The LINEAR FAST REVERSE project rises from the passion for astronomy and mechanics, taking advantage of more than 15 years of experience and testing, lots of star parties and spending countless hours under starry skies, with any types of instrumentation. Since the great majority of the problems regards the mount, both design and manufacture have been focused on realizing a mount such to overcome technical troubles.

Let’s start with the mount, which we consider the main innovation, by explaining the reasons why we chose to switch from the traditional worms and gears mechanism to a new transmission system based on pulleys and tooth belts, for both right ascension and declination.

Pulleys and toothed belts, zero backlash!

This choice has allowed to obtain several advantages: a really steady motion without play (no backlash) and sudden peaks, factors of paramount relevance for long guided exposures and during high magnification visual observations. These features are of particular relevance especially for the declination axis motor that can now quickly reverse the motion without breaks to recover the plays: from here the mount name FAST REVERSE. The toothed belts used in the M-uno have the structure made of special material with steel strands to avoid any deformation, elongation and stress, much better than those used in the automotive engine distribution system (which are generally made of rubber with nylon strands). Considering that the service time for the automotive toothed belts is around 100.000 km (60.000 miles), assuming a medium regime of 2.000 rpm and thermal stress from 0 to 90 °C (30 to 195 °F) in a few minutes, we can think that the life cycle of the Linear toothed belts will be extremely long!

It is important to underline that in the gear-worm systems the motion transmission has only one tangent point of contact, any errors on each of the two components will, sooner or later, result into a tracking error.

On the other hand, in the pulley-toothed belt system, no direct contact occurs between the pulley and the motion is transmitted by the belt engaging from 50% to 90% of the girth surface. Consequently any error, eventually present, is averaged among the cogs, moreover soft, greatly reducing the tracking error.

These features allow the Linear mount to perform guided exposures up to 20-30 minutes with punctiform stars even with optics of 2-3 meters of focal length.

No wear, no frictions

No wearing effects since no relevant frictions occur. In fact, all the pulleys and the axes rotate on roller bearings, 13 for the RA axis and 13 for the DEC axis that allow to reduce the total friction almost to zero.

Another significant advantage of very low frictions is that the risks of motor slipping during GOTO operation is virtually null.

On the contrary, it is well known the difficulty to regulate the coupling between gear and worm in the conventional mounts. If the coupling is tight the motors can stuck with consequent loss of the position, if the coupling is too loose the plays increase.
On the other hands, the absence of significant play in the LineAR makes the initial calibration of guiding CCD quick and easy.

No lubrication, no maintenance

Since there are no gears, there is no need of periodical lubrication of the internal components and therefore the maintenance is extremely reduced and limited to the external cleaning.

Concluding remarks

The LINEAR mount is specifically designed for mobile astroimagers, with some peculiar features:
Excellent performances in guided imaging, even with high focal lengths up to 3 metres.
Simple and original design
Really portable and lightweight, with its useful handle and a weight of only 12 kg (26.4 lb), without counterweight and bar
Payload capacity up to 20 kg (44 lb) in imaging (best choice 15/18 kg, 33/40 lb)
High quality manufacturing, all parts are being designed for long lasting use, made of anodized aluminium and stainless steel, directly milling obtained from single blocks thanks to high precision 5 axes CNC machines.
Reliable and performing
Easy to use, in both mechanical solutions and as far as the pointing procedure is of concern. For this latter, in fact, the SYNSCAN by Skywatcher has been adopted, one of the most used and reliable in the world, having one of the lowest cost-to-performance ratios, that can be easily and freely updated on the Internet.
Chinese mounts apart, the LINEAR is the cheapest mount, among those with the same capacity in the whole world.
Easily suitable to the main commercial tripods, such as Baader AHT, Skywatcher and several others.


In short, the LINEAR FAST REVERSE mount is ideal for those travelling astroimagers seeking for long deep-sky exposures, even with long focal lengths, by means of an high quality, light, reliable, accurate and easy-use setup, with an excellent quality/performance-to-cost ratio.
Type:German equatorial mount
Weight:12 kg (26.4 lb), without counterweight and bar
Capacity:20 kg (44 lb) in imaging, 25 kg (55 lb) in observing
Construction material:Anodized aluminium, worked out from single blocks with high precision 5 axis CNC machines
Transmission system:All belts drive system based on four stages reducer. Pulleys made with special glass fiber polymer and high precision tooth belts. All the movements are on ball bearings. No maintenance and no backlash system.
RA Axis:Heavy duty steel, diam. 35 mm; 1x dual ball bearing diam. 62 mm + 1 roller bearing diam. 72 mm + 2 roller bearings diam. 45 mm – on bearings clutch system
DEC Axis:Heavy duty steel, diam. 35 mm; 1x dual ball bearing diam. 62 mm + 1 roller bearing diam. 72 mm + 1 roller bearing diam. 45 mm – on bearings clutch system
Tripod connection:Pre-bored holes in different circle diametres (e.g. for Baader tripod etc.)
Scope plate:Losmandy, 3" (75 mm), dovetail, single knob with 2 tightening points
GoTo system:StarGO GoTo Control System WIFI version
Polar finder:Skywatcher model (optionally Losmandy model)
Counterweight bar:Quick release, 30 mm diam.(1.181"), stainless steel bar
Counterweight:Stainless steel 6 kg (13.2 lb)
AVALON Instruments Linear mount
3" saddle plate for telescopes - Losmandy style
Polar finder
6 kg stainless steel counterweight + counterweight bar
Avalon StarGo Drive System
Cardboard shipping box with foam inlays



Recommended accessories




Accessories for mounts

L-UP13

TS-Optics Losmandy style dovetail bar - 330 mm long - flat surface

TS-Optics Losmandy style dovetail bar - 330 mm long - flat surface

  • On stock
  • Only 1 pcs left in stock

EUR 79,00RRP EUR 95,00you save 16.8% (EUR 16,00)

%

AVLCW2000

Avalon 2 kg Counterweight - Bore 30 mm

Avalon 2 kg Counterweight - Bore 30 mm

  • On stock
  • Only 1 pcs left in stock

EUR 110,00

AVLCW3000

Avalon 3 kg Counterweight - Bore 30 mm

Avalon 3 kg Counterweight - Bore 30 mm

  • On stock
  • Only 1 pcs left in stock

EUR 121,00

AVLCW4000

Avalon 4 kg Counterweight - Bore 30 mm

Avalon 4 kg Counterweight - Bore 30 mm

  • On stock
  • Only 1 pcs left in stock

EUR 135,00

AVLCW6000

Avalon 6 kg Counterweight - Bore 30 mm

Avalon 6 kg Counterweight - Bore 30 mm

  • On stock
  • Only 1 pcs left in stock

EUR 161,00


Adaptors

Customers who bought this product also bought...

General Accessories

Mounts

Photo Acessories

AV-9EXG001

Avalon Guide Scope Extender

Avalon Guide Scope Extender

  • On stock
  • Only 1 pcs left in stock

EUR 334,00


Power Supply

3810000

Bresser Mobile Power Station 100 Watt

Bresser Mobile Power Station 100 Watt

  • Item has delivery time
  • Only 1 pcs left in stock

EUR 169,00


Similar Products

Reviews